Re: HD failure not detected.

At 09:50 PM 29/04/2006, Bruce Allen wrote:
>The self-tests detect unreadable sectors of the disk. A disk with
>such sectors *may* still be perfectly healthy. In order to bring
>the disk back to 'normal' functioning, one must write to the
>unreadable sectors, so that the disk can store data there, or
>reallocate the sectors if they are no longer usable. Unless the
>disk has run out of spare sectors for this reallocation, it will
>still be considered healthy by the firmware.
How would I write to the unreadable sectors in Windows?
T
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Re: HD failure not detected.

I don't know. Christian, do you know?
PS: one possibility -- install cygwin on your Win32 box, then use 'dd'
from cygwin.
Cheers,
Bruce
On Sun, 30 Apr 2006, Thane Sherrington (S) wrote:
> At 09:50 PM 29/04/2006, Bruce Allen wrote:
>> The self-tests detect unreadable sectors of the disk. A disk with such
>> sectors *may* still be perfectly healthy. In order to bring the disk back
>> to 'normal' functioning, one must write to the unreadable sectors, so that
>> the disk can store data there, or reallocate the sectors if they are no
>> longer usable. Unless the disk has run out of spare sectors for this
>> reallocation, it will still be considered healthy by the firmware.
>
> How would I write to the unreadable sectors in Windows?
>
> T
>
>
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> Get stuff done quickly with pre-integrated technology to make your job easier
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Re: Install smartctl on Mac OS X

Hello,
Here's a quick reminder. I'm still hoping for a clue to
installing SmartCtl on Mac OS X. Are there any Mac OS X users on
this list?
Best,
Mark
Mark Schonewille wrote:
> Hello,
>
> I am new on thist list. For info about me, feel free to have a look at
> http://economy-x-talk.com.
>
> Smartctl seems to be the solution I am looking for, but I cannot find
> any info on the web about installing smartctl on Mac OS X. Considering
> installing smartctl on many linux and unix falvours, the smartmontools
> homepage advices downloading a tar ball, but there is no tar ball
> available on sourceforge, except those with i86 binaries. Could you
> please refer me to relevant information?
>
> Thanks,
>
> Mark
>
--
--

Re: Install smartctl on Mac OS X

Mark,
I have Mac OS X machines in my collection, but tend to do a lot of work on
the command line. We don't have a package installer along the lines of
the usual Mac OS X standard.
If you are able to tackle a command line install, read the INSTALL file
and then download a CVS snapshot or the .tar.tz tarball. The 'make
install' works correctly on Mac OS X. But if your computer does not have
some basic 'computer geek' tools such as compilers installed, this won't
work.
One thing that might work well is to install FINK
http://fink.sourceforge.net/index.php?phpLang=en and then get the package
from there:
http://pdb.finkproject.org/pdb/search.php?summary=smartmontools This
should require nothing other than standard Mac OS X install skills. But
the package version available here is 5.33 not the current 5.36 version.
Cheers,
Bruce
On Wed, 3 May 2006, Mark Schonewille wrote:
> Hello,
>
> Here's a quick reminder. I'm still hoping for a clue to
> installing SmartCtl on Mac OS X. Are there any Mac OS X users on
> this list?
>

system/io performance is unbearably bad during long selftest

David Mansfield <centos <at> dm.cobite.com>
2006-05-01 20:15:39 GMT

Hi,
I have one system out of about 20 here that basically 'goes away' during
the selftest of the drives. In fact, I/O can be delayed by MINUTES
during the long selftest. It does always complete, however, if you are
patient enough.
I have remote monitoring of the machine, and every time the long
selftest fires off (Sunday Night/Monday morning) all kinds of 'failures'
are reported because the services cannot respond in a reasonable time.
System is Centos 4.2. The IDE interface is amd74xx. The drives are
Seagate ST380011A.
Each drive is on it's own channel.
Any ideas?
Thanks,
David
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Hi
First of all I'm new to this list and new to the smartmontools.
I recently experienced a hard disk crash and since then I replaced it
with two Seagate SATA disks. I also started using the smartmontools
because when the disk was dying smartctl showed lots of errors on the
old disk. I'm hoping to be better prepared next time.
Unfortunately "next time" might be sooner than I'd hoped for. But
then again I'm not sure how to interpret all these
warnings/messages/numbers. I hope someone here will be able to help
me interpret them correctly.
First of all I'm seeing lots of messages like this in /var/log/syslog:
May 4 19:35:05 valinor kernel: parport0: FIFO is stuck
May 4 19:35:05 valinor kernel: parport0: BUSY timeout (1) in
compat_write_block_pio
May 4 19:35:15 valinor kernel: DMA write timed out
There are dozens of them with approximately two-minute intervals.
next I received the following from smartd today:
Subject: SMART error (Usage) detected on host: valinor
This email was generated by the smartd daemon running on:
host name: valinor
DNS domain: [Unknown]
NIS domain: (none)

Hi all,
On Fri, 2006-04-21 at 17:05 -0700, Linus Torvalds wrote:
>
> On Fri, 21 Apr 2006, Jeff Garzik wrote:
>
> >
> > Agreed, though the original poster had already done a 400GB dd from
> > /dev/zero...
>
> Yes, but to a _file_ on the partition (ie he didn't overwrite any existign
> data, just the empty parts of a filesystem).
>
> I realize that it's not enough for the "re-allocate on write" behaviour,
> and for that you really _do_ need to re-write the whole disk to get all
> the broken blocks reallocated, but my argument was just that we should
> make sure to _tell_ people when they are overwriting all their old data ;)
>
I did not realize this before, and asked badblocks maintainer Theodore
if badblocks /some/file was supported (the man page says no); but of
course any filesystem can decide to re-allocate blocks for a file.
However, for large files where parts may be bad sectors, I am still
searching for a way to read, then re-write every physical sector
occupied by the file.
With the purpose to remap the bad sectors inside large MPEG files (where
I would rather have a few zeroed holes than a read error in them).
Anyone know such tooling exists? I suspect it has to use filesystem